A political pollster selects a random sample of 75 registered voters from Allegheny County, Pennsylvania. city of Pittsburgh is in Allegheny County. The pollster is interested in determining if the distribution of politic party preference among registered voters in this county differs between those who live in Pittsburgh and th who live in the suburbs. The responses are displayed in the table. Political Party Independent Republican Democratic 20 8 11 City Suburbs Location 8 10 18 The pollster would like to know if these data provide convincing evidence of a relationship between resider

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
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A political pollster selects a random sample of 75 registered voters from Allegheny County, Pennsylvania. The
city of Pittsburgh is in Allegheny County. The pollster is interested in determining if the distribution of political
party preference among registered voters in this county differs between those who live in Pittsburgh and those
who live in the suburbs. The responses are displayed in the table.
Political Party
Democratic
Independent
Republican
20
11
City
Suburbs
Location
10
18
8
The pollster would like to know if these data provide convincing evidence of a relationship between residential
status and political party in the population of all registered voters in Allegheny County. What is the appropriate
inference procedure?
chi-square test for goodness of fit because the data come from one random sample
chi-square test for homogeneity because the data come from independent random samples
O chi-square test for association/independence because the data come from one random sample
chi-square test for association/independence because the data come from independent random samples
Transcribed Image Text:A political pollster selects a random sample of 75 registered voters from Allegheny County, Pennsylvania. The city of Pittsburgh is in Allegheny County. The pollster is interested in determining if the distribution of political party preference among registered voters in this county differs between those who live in Pittsburgh and those who live in the suburbs. The responses are displayed in the table. Political Party Democratic Independent Republican 20 11 City Suburbs Location 10 18 8 The pollster would like to know if these data provide convincing evidence of a relationship between residential status and political party in the population of all registered voters in Allegheny County. What is the appropriate inference procedure? chi-square test for goodness of fit because the data come from one random sample chi-square test for homogeneity because the data come from independent random samples O chi-square test for association/independence because the data come from one random sample chi-square test for association/independence because the data come from independent random samples
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